104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright © 2023 Intel Corporation
|
|
*/
|
|
|
|
#include "intel_fbdev_fb.h"
|
|
|
|
#include <drm/drm_fb_helper.h>
|
|
|
|
#include "xe_gt.h"
|
|
#include "xe_ttm_stolen_mgr.h"
|
|
|
|
#include "i915_drv.h"
|
|
#include "intel_display_types.h"
|
|
|
|
struct drm_framebuffer *intel_fbdev_fb_alloc(struct drm_fb_helper *helper,
|
|
struct drm_fb_helper_surface_size *sizes)
|
|
{
|
|
struct drm_framebuffer *fb;
|
|
struct drm_device *dev = helper->dev;
|
|
struct drm_i915_private *dev_priv = to_i915(dev);
|
|
struct drm_mode_fb_cmd2 mode_cmd = {};
|
|
struct drm_i915_gem_object *obj;
|
|
int size;
|
|
|
|
/* we don't do packed 24bpp */
|
|
if (sizes->surface_bpp == 24)
|
|
sizes->surface_bpp = 32;
|
|
|
|
mode_cmd.width = sizes->surface_width;
|
|
mode_cmd.height = sizes->surface_height;
|
|
|
|
mode_cmd.pitches[0] = ALIGN(mode_cmd.width *
|
|
DIV_ROUND_UP(sizes->surface_bpp, 8), XE_PAGE_SIZE);
|
|
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
|
|
sizes->surface_depth);
|
|
|
|
size = mode_cmd.pitches[0] * mode_cmd.height;
|
|
size = PAGE_ALIGN(size);
|
|
obj = ERR_PTR(-ENODEV);
|
|
|
|
if (!IS_DGFX(dev_priv)) {
|
|
obj = xe_bo_create_pin_map(dev_priv, xe_device_get_root_tile(dev_priv),
|
|
NULL, size,
|
|
ttm_bo_type_kernel, XE_BO_SCANOUT_BIT |
|
|
XE_BO_CREATE_STOLEN_BIT |
|
|
XE_BO_CREATE_PINNED_BIT);
|
|
if (!IS_ERR(obj))
|
|
drm_info(&dev_priv->drm, "Allocated fbdev into stolen\n");
|
|
else
|
|
drm_info(&dev_priv->drm, "Allocated fbdev into stolen failed: %li\n", PTR_ERR(obj));
|
|
}
|
|
if (IS_ERR(obj)) {
|
|
obj = xe_bo_create_pin_map(dev_priv, xe_device_get_root_tile(dev_priv), NULL, size,
|
|
ttm_bo_type_kernel, XE_BO_SCANOUT_BIT |
|
|
XE_BO_CREATE_VRAM_IF_DGFX(xe_device_get_root_tile(dev_priv)) |
|
|
XE_BO_CREATE_PINNED_BIT);
|
|
}
|
|
|
|
if (IS_ERR(obj)) {
|
|
drm_err(&dev_priv->drm, "failed to allocate framebuffer (%pe)\n", obj);
|
|
fb = ERR_PTR(-ENOMEM);
|
|
goto err;
|
|
}
|
|
|
|
fb = intel_framebuffer_create(obj, &mode_cmd);
|
|
if (IS_ERR(fb)) {
|
|
xe_bo_unpin_map_no_vm(obj);
|
|
goto err;
|
|
}
|
|
|
|
drm_gem_object_put(intel_bo_to_drm_bo(obj));
|
|
return fb;
|
|
|
|
err:
|
|
return fb;
|
|
}
|
|
|
|
int intel_fbdev_fb_fill_info(struct drm_i915_private *i915, struct fb_info *info,
|
|
struct drm_i915_gem_object *obj, struct i915_vma *vma)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
|
|
|
|
if (!(obj->flags & XE_BO_CREATE_SYSTEM_BIT)) {
|
|
if (obj->flags & XE_BO_CREATE_STOLEN_BIT)
|
|
info->fix.smem_start = xe_ttm_stolen_io_offset(obj, 0);
|
|
else
|
|
info->fix.smem_start =
|
|
pci_resource_start(pdev, 2) +
|
|
xe_bo_addr(obj, 0, XE_PAGE_SIZE);
|
|
|
|
info->fix.smem_len = obj->ttm.base.size;
|
|
} else {
|
|
/* XXX: Pure fiction, as the BO may not be physically accessible.. */
|
|
info->fix.smem_start = 0;
|
|
info->fix.smem_len = obj->ttm.base.size;
|
|
}
|
|
XE_WARN_ON(iosys_map_is_null(&obj->vmap));
|
|
|
|
info->screen_base = obj->vmap.vaddr_iomem;
|
|
info->screen_size = intel_bo_to_drm_bo(obj)->size;
|
|
|
|
return 0;
|
|
}
|